FWIW...Ken Beck offered a challenge...a year-long, I think, for anyone to bring in a string that showed a significant performance increase vs. the BW stock string (14 strand Dynaflight '97).
I think you only had to show a 2 or 4 fps improvement? If you could, you got a free BW bow. However, if you couldn't, you had to buy a BW bow at regular price. Nobody took the challenge. Take what you will from that. Contact BW for full details on the challenge.
I've replaced a few "factory" BW strings, and mine are quieter--I think because I pad the loops.
I've experimented with "skinny" strings, haven't seen any real benefits to them. I don't like the increased stretch/creep, or the decreased durability. I didn't get into this game for 2-4 fps anyway, if you can even get that after building up the center serving.
I'm not advertising here--still not taking orders, probably won't be for a good while yet. Just calling it like I see it.
Chad